What is a nocturne in poetry?

In poetry, a nocturne is a type of poem that evokes the atmosphere and imagery of night-time. It is typically characterized by its use of dreamy and evocative language, as well as themes of darkness, solitude, and mystery. Nocturnes often explore themes of love, loss, and longing, and draw inspiration from the beauty of the night-time world. The term 'nocturne' is sometimes used to refer to musical compositions inspired by the night, but it originally referred to a genre of painting.